diff --git a/jsonargparse_tests/test_alias.py b/jsonargparse_tests/test_alias.py
deleted file mode 100644
index a4ddb144..00000000
--- a/jsonargparse_tests/test_alias.py
+++ /dev/null
@@ -1,10 +0,0 @@
-def test_alias():
-    import jsonargparse
-    parser = jsonargparse.ArgumentParser()
-    parser.add_argument('--foo', '--bar')
-    parsed = parser.parse_string('foo: "aaa"')
-    assert parsed.foo == 'aaa'
-    parsed = parser.parse_string('bar: "bbb"')
-    assert parsed.foo == 'bbb'
-    parsed = parser.parse_args(['--bar', 'ccc'])
-    assert parsed.foo == 'ccc'
diff --git a/jsonargparse_tests/test_core.py b/jsonargparse_tests/test_core.py
index b76dfe14..e4c8fc61 100755
--- a/jsonargparse_tests/test_core.py
+++ b/jsonargparse_tests/test_core.py
@@ -1223,5 +1223,22 @@ def test_add_multiple_config_arguments_error(self):
             parser.add_argument('--cfg2', action=ActionConfigFile)
 
 
+    def test_parser_alias(self):
+        import jsonargparse
+
+        # Create a parser where --bar is an alias for --foo
+        parser = jsonargparse.ArgumentParser()
+        parser.add_argument('--foo', '--bar')
+
+        parsed = parser.parse_string('foo: "aaa"')
+        assert parsed.foo == 'aaa'
+
+        parsed = parser.parse_string('bar: "bbb"')
+        assert parsed.foo == 'bbb'
+
+        parsed = parser.parse_args(['--bar', 'ccc'])
+        assert parsed.foo == 'ccc'
+
+
 if __name__ == '__main__':
     unittest.main(verbosity=2)